Actions66
- Email Actions
- Domain Actions
- Folder Actions
- Template Actions
- Webhook Actions
- Campaign Actions
- Audience Contact Actions
- Audience List Actions
- Audience Property Actions
- Audience Segment Actions
- Audience Topic Actions
Email → Send
AI-generatedSummary
Send an email through Lettr, using a template or raw HTML and plain-text content. The operation can include recipients in CC and BCC, sender and reply-to names, attachments, metadata, provider options, and routing or campaign identifiers.
Inputs
- From Email (required) — Sender email address.
- To (required) — Recipient email addresses, separated by commas, semicolons, or newlines.
- Subject — Email subject. The template supplies the subject when a template is used and this field is omitted.
- HTML — HTML email body.
- Text — Plain-text email body.
- Template Slug — Template slug to render instead of raw HTML or text.
- Additional Fields — Optional settings: AMP HTML, idempotency key, CC and BCC recipients, campaign and project IDs, sender and reply-to names, reply-to address, metadata and provider options as JSON, template substitution data as JSON, template version, and attachments as a JSON array. Reuse an idempotency key on retries to avoid delivering a duplicate; keys are kept for 24 hours and scoped per team and API key.
Output shape
A single response item containing the Lettr API response.
The exact response fields are not established by the available source view.
Examples
Example 1: Send a templated email with retry protection
Set From Email and To, provide a Template Slug, and set an Idempotency Key based on the email's subject, such as an order ID. The template supplies the subject if Subject is omitted.
Example 2: Send an email with raw content and an attachment
Set From Email and To, provide a subject and HTML or Text body, and pass Attachments (JSON) as an array of attachment objects.